/Engine/Source/Runtime/Engine/Public/MaterialCachedData.h
void UpdateForExpressions ( const [FMaterialCachedExpressionContext](API\Runtime\Engine\FMaterialCachedExpressionContext) & Context, TConstArrayView< [TObjectPtr](API\Runtime\Core\Delegates\TObjectPtr)< [UMaterialExpression](API\Runtime\Engine\Materials\UMaterialExpression) >> Expressions, EMaterialParameterAssociation Association, int32 ParameterIndex )